"It occurred to me that since the invocation of Twitter, nobody who has participated in it has created any lasting art. And yes! Yours truly is included in that roundup as well," Mayer explained in a blog entry Monday. "No artwork created by someone with a healthy grasp of social media thus far has proven to be anything other than disposable."

Still, the 32-year-old rocker -- who once used his Twitter account to save face following a controversial Playboy interview where he called ex Jessica Simpson "sexual napalm" -- acknowledges the site's impact in Hollywood.

"I'm not knocking Twitter for those who are trying to make a name for themselves. Some people need all the RTs they can get today," he sniped. "But for those who have already established themselves it's a slow erosion of the artistic notion."

Mayer's biggest gripe with the social networking site?

How celebrities have used Twitter as a marketing tool in their careers.

"When you convert your art into the art of real-time brand management, I suddenly have no more interest in it...I'm not a brand, and I don't refer to myself in the third person. I'm a dude who plays guitar and writes songs," he said. "When I'm done writing and recording them I will market them. Luckily for those who are cracking their knuckles ready to knock my point of view, that won't be for a long while. Because good s--t takes a long time. And this is going to take a very long time."